The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 2008
Filed:
Oct. 20, 2003
Christopher S. Caldwell, The Woodlands, TX (US);
Carl F. G. Baxter, Virum, DK;
Robert E. Rose, Jr., Pearland, TX (US);
Brent L. Dyer, Missouri City, TX (US);
Michael Beard, Spring, TX (US);
Christopher S. Caldwell, The Woodlands, TX (US);
Carl F. G. Baxter, Virum, DK;
Robert E. Rose, Jr., Pearland, TX (US);
Brent L. Dyer, Missouri City, TX (US);
Michael Beard, Spring, TX (US);
RTI Energy Systems, Inc., Spring, TX (US);
Abstract
A centralizer system is provided for use in a marine riser system, the centralizer being preferably heat-shrink fitted to an upset portion of a keel joint, the upset portion having tapered sections on the upper and lower ends that gradually blend into the outer diameter of the pipe used as the keel joint, the centralizer preferably comprising axially extending annular grooves in surrounding relationship to the upset portion, the grooves serving to permit forces acting on the centralizer to be redirected or dissipated to thereby prevent excessive buildup on a selected region of the upset portion adjacent the radial grooves.